package demo1;

public class Computer {
    public void openComputer() {
        System.out.println("打开电脑");
    }
    /*public void useDevice(IUSB usb) {
        usb.openDevice();
        if (usb instanceof Mouse) {
            Mouse mouse = (Mouse) usb;
            mouse.click();
        } else if (usb instanceof KeyBoard) {
            KeyBoard keyBoard = (KeyBoard) usb;
            keyBoard.inPut();
        }
        usb.closeDevice();
    }*/

    public void useDevice(IUSB iusb) {
        iusb.openDevice();
        if (iusb instanceof Mouse) {
            Mouse mouse = (Mouse) iusb;
            mouse.click();
        } else if (iusb instanceof KeyBoard) {
            KeyBoard keyBoard = (KeyBoard) iusb;
            keyBoard.inPut();
        }
        iusb.closeDevice();
    }

    public void closeComputer() {
        System.out.println("关闭电脑");
    }
}
